Malicious PDF — malware analysis report

Static analysis result for SHA-256 252283af75c2ad77…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 15:22:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b972bd56437b90105338b47eb29a6a97 SHA-1: 4c3b645bed92b998683785a073ef362cdcc557e3 SHA-256: 252283af75c2ad7781382f1d26974e23477cfea3d37b53706c9c94a0e170100f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. The document body and extracted URLs suggest a lure related to movie downloads, aiming to redirect users to malicious content. The PDF_SEO_LINK_FARM heuristic further supports this, showing a mass of external links, many hosted on Shopify, likely to obscure the malicious redirector. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=tamilrockers+telugu+hd+movies++2018 In PDF document text
    • http://files.jarredantonacci.com/uploads/1/3/1/3/131381150/955af8de.pdfIn PDF document text
    • http://fovoratej.rosebayridge.com/uploads/1/3/1/4/131453780/tomipebabapal-wemesar-pinidoxelonadi.pdfIn PDF document text
    • http://files.lakelouisebiblestudy.com/uploads/1/3/2/6/132681579/2446016.pdfIn PDF document text
    • http://gujadako.readmyprint.com/uploads/1/3/1/4/131406086/ritazanepukib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0528/files/50118226136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/az_101_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/kotor_flawless_widescreen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/baghban_song_djjohal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8268/4318/files/developing_assertiveness_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5815/1070/files/answer_of_shady_plot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5559/3110/files/kinoxetumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1628/0469/files/apa_6th_edition_reference_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0584/4390/files/watch_empire_season_3_episode_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/developmental_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/tractor_pto_link.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/46668313063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1400/2600/files/biotecnologia_roja_aplicaciones.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBE 5944 bytes
SHA-256: 79ee4a5210127208e880c8b6a98a8f2af6af1d97907f7f6383bd00398b51cdb7
font_01_sfnt_off000062d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 1936 bytes
SHA-256: a8ba320a0ac8a73a5a8cc2c47ba30bd151ec5f51af4d5ac0b9daf85eaa8f1301
font_02_sfnt_off00006c16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C16 10148 bytes
SHA-256: 6dbb93f4440e35597b1fd6fe2d3ab04f81d673069eedb71427771a1925119319